That's what I was thinking! I don't really know much Portuguese, but I thought I had heard that word before...
It does, but it's avoided if possible. http://esperanto.davidgsimpson.com/eo-verbforms.html
"La knabino falas" would be the correct form. Without "la" the noun is indefinite like in English would be "A girl falls"
Pobably not since Esperanto is a conlang with no specific culture assigned to it so unless there was a set of sayings and expresions created for the language even a simple expresion like the ones you are suggesting would only be understood if said expresion existed in that persons idiomatic lexicon. Hope that makes sense.
it's obviously different between falls and is falling, isn't it? how come there is no present continuous tense in Esperanto?
Esperanto was created that way (without a distinction between present and present continuous tenses). There is no other answer to that. You likely feel they are different because your native language has a distinction, but the distinction is much more technical than some (so probably the creator of Esperanto) find necessary.
For some other questions: "verbs" or "is verbing" is considered correct. Why not this one?
I'm not able to contribute much of an argument. I'm not a native English speaker, but I just kind of assumed you can (almost) always abbreviate is to 's. It's going to the store. I'm at the library. The chest's open. The door's open (I've heard this a lot). I think the reason is because of the natural merge of i with whatever sound before.
Because it's 'A girl falls' (Knabino falas) rather than 'The girl falls' (La knabino falas).
As Esperanto has no indefinite article, "girls falls" is therefore correct for "Knabino falas".
The program said that I got the question wrong, then gave me the correct answer, which is identical to what I typed. :/
Why does he say : nabino? It is actually knabino, where is the K? This is Esperanto, not English
I can hear a k-sound quite clearly. Is it possible (e.g. headphones via bluetooth) that the very start of the audio is being cut off for you?